The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 15, 1989
Filed:
Jan. 20, 1988
Citizen Watch Co., Ltd., Tokyo, JP;
Abstract
The present invention provides an optical scanner including a horizontally arranged base plate, a light source unit rigidly mounted on the base plate and adapted to emit a beam of light, an optical scanning unit for scanning the light beam in a repetitive cycle and an optical system unit for conducting the scanning beam to a desired surface to be irradiated, the optical scanning unit including a unit base, a torsion bar rigidly supported on the unit base at the opposite ends, a rotor rigidly mounted on the twistable portion of the torsion bar and having a mirror for reflecting the light beam, an electromagnetic drive mechanism for applying a rotational drive force to the rotor and a unit-side mirror for further reflecting the reflected light from the mirror, the optical scanning unit being arranged such that the torsion bar is disposed parallel to the base plate, the light beam being scanned along a plane perpendicular to the base plate on the rotation of the rotor and the reflected beam being scanned along a plane substantially parallel to the base plate through the unit-side mirror.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile